A user reports that a computer was slower than expect during the last week.
You need to identify any application failures that occurred during the last week.
Which tool should you use?

A.
Performance Monitor

B.
Task Manager

C.
Resource Monitor

D.
Reliability Monitor

Explanation:
http://www.pcworld.com/article/2999237/windows/how-to-use-windows-10s-reliability-monitor-to-fix-and-finetune-your-pc.html